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CP violation, Higgs couplings, and supersymmetry

K. S. Babu*, Christopher Kolda†, John March-Russell‡, and Frank Wilczek

  • School of Natural Sciences, Institute for Advanced Study, Princeton, New Jersey 08540

  • *Current address: Department of Physics, Oklahoma State University, Stillwater, OK 74078.
  • †Current address: Lawrence Berkeley National Laboratory, MS 50A-5101, One Cyclotron Road, Berkeley, CA 94720.
  • ‡Current address: Theory Division, CERN, CH-1211, Geneva 23, Switzerland.
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Phys. Rev. D 59, 016004 – Published 1 December, 1998

DOI: https://doi.org/10.1103/PhysRevD.59.016004

Abstract

Supersymmetric extensions of the standard model generically contain additional sources of CP violation. We discuss how at one loop a potentially large CP violating coupling of the lightest Higgs boson h0 to leptons is induced in the minimal supersymmetric standard model (MSSM). The CP violating couplings of h0 in extensions of the MSSM, such as the next-to-minimal supersymmetric standard model (NMSSM) are also considered. We indicate how this CP violation might be observed; in particular a polarization-dependent production asymmetry, in the context of a muon collider, provides a means to access this coupling cleanly. In the MSSM, existing limits on the electric dipole moment of the electron, coupled with standard universality assumptions, severely constrains any such signal. Nevertheless, extensions of the MSSM, such as the NMSSM, allow CP-violating signals as large as 100%.

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References (18)

  1. N. Maekawa, Phys. Lett. B 282, 387 (1992).
  2. T. Banks, Nucl. Phys. B303, 172 (1988); R. Hempfling, Phys. Rev. D 49, 6168 (1994).
  3. L. Hall, R. Rattazzi, and U. Sarid, Phys. Rev. D 50, 7048 (1994).
  4. See, e.g., J. Gunion et al., The Higgs Hunter’s Guide (Addison-Wesley, Reading, MA, 1990).
  5. P. Fayet, Nucl. Phys. B90, 104 (1975).
  6. N. Haba, Prog. Theor. Phys. 97, 301 (1997).
  7. B. Grzadkowski and J. Gunion, Phys. Lett. B 294, 361 (1992).
  8. D. Atwood and A. Soni, Phys. Rev. D 52, 6271 (1995); A. Pilaftsis, Phys. Rev. Lett. 77, 4996 (1996); B. Kamal, W. Marciano, and Z. Parsa, hep-ph/9712270.
  9. Muon Collider Collaboration, R. Palmer, physics/9802005.
  10. E. Commins et al., Phys. Rev. A 50, 2960 (1994).
  11. T. Ibrahim and P. Nath, Phys. Rev. D 57, 478 (1998). ibid.See also Y. Kizukuri and N. Oshimo, 46, 3025 (1992).
  12. Particle Data Group, R. Barnett et al., Phys. Rev. D 54, 1 (1996).
  13. T. Moroi, Phys. Rev. D 53, 6565 (1996); M. Carena, G. Giudice, and C. Wagner, Phys. Lett. B 390, 234 (1997).
  14. E821 Collaboration, B. L. Roberts et al., Status of the New Muon (g-2) Experiment, Proceedings of the 28th International Conference on High-Energy Physics (World Scientific, Singapore, 1997). See also http://www.phy.bnl.gov/g2muon/home.html.
  15. S. Dimopoulos and G. Giudice, Phys. Lett. B 357, 573 (1995); ibid.A. Cohen, D. Kaplan, and A. Nelson, 388, 588 (1996).
  16. N. Arkani-Hamed and H. Murayama, Phys. Rev. D 56, 6733 (1997).
  17. F. Gabbiani et al., Nucl. Phys. B477, 321 (1996); J. Bagger, K. Matchev, and R. Zhang, Phys. Lett. B 412, 77 (1997).
  18. Y. Nir and N. Seiberg, Phys. Lett. B 309, 337 (1993); ibid.Y. Nir and R. Rattazzi, 382, 363 (1996).

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Phys. Rev. D 59, 016004– Published 1 December, 1998
  • Received 4 May 1998

© 1998 American Physical Society

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